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Top10 Best Tankless Electric Water Heater for Large Family

On a cold winter’s day, the last thing that you need is ice cold water. If you are dealing with a situation like this then, you have no other option than to have a water heater. There are so many types of water heaters available that you may consider purchasing. But not all of them are suitable for you.

We have picked some best tankless electric water heater for large family that you can consider buying. These water heaters are going to be very easy to use and it saves power consumption. Having these will save you from the chilling feeling of cold water during winter.

 10 Best Tankless Electric Water Heater for Large Family Reviews:

Table of Contents

Having the best tankless electric water heater for large families can save you from so many hassles in time of need. There is hardly any reason to waste away water or energy from it. Rather it helps you to save your money. Here are our top 10 picks;

1.Bosch Electric Mini-Tank Water Heater Tronic 3000

best electric tankless water heaters

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Bosch ES4 Tronic 3000 T Electric water heater is one of the best electric tankless water heaters that you can think about buying for yourself for the unique features it has. You can get perfectly soothing hot water wherever it is needed and whenever it is needed by using it.

Bosch ES4 Tronic 3000 T Electric water heater has a capacity of 2.5 gallons. This mini heater fits perfectly under your sink or anywhere without taking so much space. It is capable of providing you with a practical and effective solution for your hot water needs.

It is perfect for on-demand use. The heater has an in-built very fast recovery rate so it eliminates the long wait for hot water. It comes with an external dial. It allows you to control the temperature very easily.

The temperature and pressure relief valve increase safety. Moreover, Bosch ES4 Tronic 3000 T Electric water heater has a very sleek and attractive exterior design that easily gets mixed with any interior of the house when it remains visible.


This is a very convenient hot water electric heater. It has a 2.5-gallon point-of-use mini-tank that easily fits any place with a small space.

  • It has a thermal efficiency of 98%.
  • It has a dimension of 13.75 W x 13.75 H x 10.75 D Inches
  • It is very easy to maintain.
  • It has premium glass-lined material.
  • Easy and independent installation possible.
  • It can be a wall, shelf or floor mounted.
  • It has a very fast recovery rate.


  • It can get leaked due to improper installation.

2. Bosch Electric Mini-Tank Water Heater T 4-Gallon

best tankless electric water heater for large family

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With Bosch ES4 Tronic 3000 T Electric water heater you can get heat water whenever you need it. It comes with a capacity of 4 gallons. Bosch ES4 Tronic 3000 T Electric water heater is a practical and effective solution to your hot water needs. Bosch ES4 Tronic 3000 T Electric water heater is available in three compact sizes, which can be wall hung and floor mounted. It easily fits under the sink in the cabinet space.

It also has a very sleek and attractive design so it blends in very comfortably with existing decor when it is installed in a visible location. It is a great heater for a wide range of locations. This water heater makes the water warm almost instantly.

It provides hot water very quickly at the point of use. And it comes with a temperature and pressure relief valve installed. This Bosch ES4 Tronic 3000 T Electric water heater is very lightweight and compact and it is adjustable with anything.

Bosch ES4 Tronic 3000 T Electric Water Heater measures 13.75″ H x 13.75″ L x 13.5″ D and weighs 17.3 lbs. You should not operate this water heater in any way if it has a damaged cord or plug if it is not working properly or it has been damaged and dropped for a while.


  • This heater fits under your sink and provides the water that you need.
  • This electric water heater is very easy to maintain.
  • It comes with premium glass-lined material for long service life.
  • Independent installation is possible with this electric water heater.
  • It has a very fast recovery rate.
  • It can be easily mounted.


  • In this heater water leaks sometimes.

3. Bosch Electric Mini-Tank Water Heater T 7-Gallon

Electric Mini-Tank Water Heater

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Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon is one of the effective water heaters that you can find in the market. It significantly minimizes the time of heating the water.

Having a hot water source in a single facet of a home is not enough. This water must be found in all other taps of a house as well. By having Tronic 3000 T from Bosch you can ensure you can get hot water from wherever you need it and whenever you need it. It is a point-of-use electric mini-tank heater. This particular heater can be used as the primary water heating source for a house or it can be used for a single sink.

In fact, this Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon is perfect for using three different applications; only one water heating source for a single sink, as a supplement for an existing heater located far from the sink, or as a buffer installed with tankless water heaters that experience intermittent cold water.

This water heater can hold water up to 7 gallons. This Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon is very compact and lightweight. It can be a floor, shelf, and wall-mounted. Again this brand brings an amazing design that blends perfectly with any interior decor.


  • This heater has a 7-gallon water holding capacity.
  • This point-of-use mini tank fits perfectly under the sink of your house and provides hot water whenever you need it.
  • It can be installed both vertically or horizontally.
  • It can be a very reliable water source both for your office and home.
  • It is very easily mounted.
  • This water heater is very compact and lightweight.


  • It creates a little bit of sound.

4.Ecosmart ECO 18 Electric Tankless Water Heater

Ecosmart ECO 18 Electric Tankless Water Heater

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Ecosmart ECO 18 tankless electric water heater for large families comes with the most advanced technology in water heating. So this tankless water heater is capable of saving 50% of the water heating cost. The technology is so much user-friendly so people understand the operation of it pretty easily.

This smart technology lets this heater use the energy for it exactly according to the need for the heating of the water. This way this heater saves a lot of money for the users.

This water heater is also very compact and well-mounted so it lets you save valuable storage space. Again this amazing tankless water heater comes with lifetime warranty features from the manufacturers.

This water heater has a unique self-modulating technology. Ecosmart ECO 18 Electric Tankless Water Heater is capable of heating two sinks and two showers simultaneously during a warm climate. And a shower and a sink in a colder climate. It also comes with digital temperature control. It allows you to set your outlet temperature.

It lets you save money, space, energy and it is very compact. Moreover, it has the ability to provide you with endless hot water.


  • This heater is highly durable.
  • This product is very easy to use.
  • It comes with a lifetime warranty.
  • You will never run out of hot water.
  • It has a digital temperature control system.


  • Customer service is not satisfactory to some users.

5.EcoSmart ECO 11 Electric Tankless Water Heater

EcoSmart ECO 11 Electric Tankless Water Heater

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Again this Ecosmart brand comes up with the most advanced technology. EcoSmart ECO 11 Electric Tankless Water Heater is no different. EcoSmart ECO 11 Electric Tankless Water Heater can save you up to 50% of water heating costs.EcoSmart ECO 11 Electric Tankless Water Heater also comes with the brand’s very own patented self-modulating technology. So it can regulate the amount of energy needed for a certain amount of needed hot water.

It not only saves you money but also it is very compact and wall-mounted. So you can save valuable storage space for your house. This model from this brand also comes with a lifetime warranty from the manufacturers.


  • It can save 60% of the water heating costs.
  • You will never run out of hot water.
  • It comes with a warranty for a lifetime.
  • It has patented self-modulating technology and design.
  • It is very energy efficient.


  • It may have some leakage issues sometimes.

6.Stiebel Eltron 223422 240V

best tankless electric water heater for a large family

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Stiebel Eltron Tempra 29 Plus hot water heater is a very wise pick if you are thinking about installing the best tankless electric water heater for a large family in your home. The quality is quite good that you definitely can rely on. It has the ability to supply hot water in different needed places of a house.

There is no chance of running out of hot water if you are in need of it. You can easily set it up for a particular convenient temperature. The installation of it is super easy. If you have some prior knowledge about running water lines and electricity then you are good to go. But it is always better to seek some professional help for doing so.

It is very well made and it is very much updated from the earlier models. Setting up the temperature is very simple and accurate. After using this water heater for a few days most of the users feel very satisfied with taking the buying decision.


  • It brings superior and reliable performance with it.
  • No venting is required for it.
  • It comes with a very sleek design that fits anywhere.
  • The users will be able to enjoy very good technical support from the manufacturers.


  • It doesn’t support the whole house.

7.Stiebel Eltron Tempra 24 Plus

best tankless water heater electric

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Made by a German manufacturer, the Stiebel Eltron Tempra 24 Plus features an impressive design and has a quality frame. Its efficiency is commendable, and this is what makes it well worth every dollar you pay for it. It is excellent for homes that have a high demand for continuous hot water.

This best tankless water heater electric boasts of smart design. The Tempra 24 Plus automatically adjusts its settings to different power settings, and thus reducing energy wastage. When hot water is in high demand, it self-adjust the rate of water flow to ensure hot water comes out even in frosty temperatures. Most of the reviewers have applauded it because of its consistency in performance.

Hot water heaters are often criticized for decreasing water flow when another appliance is turned on. However, the Tempra 24 Plus solves this problem by adjusting its temperature and water flow rate in real-time. It maintains your water temperature by lowering the rate of water flow, thereby preventing temperature fluctuations. What’s more, it features a digital display that shows temperature readings.

The body of this heater is sleek and features pre-set temperature buttons that allow you to enter the right temperature memory settings at home.

We can term this as one of the best premium tankless water heaters for homes or properties with a high demand for hot water.


  • It is energy saving
  • It is compact, and thus will not need a lot of space
  • It runs quietly, and thus will not create noise at home
  • Comes with commendable warranties- 7 years warranty for leakage-proof experience, and a 3-year warranty on its parts


Installation can be challenging

8.iHeat Tankless S-14 Electric Water Heater

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Are you looking for a multipurpose tankless water heater that will ensure a continuous supply of hot water not only to your bathrooms and kitchen but also at a yacht or beachfront home? The heat Tankless S-14 is the best tankless water heater for this purpose.

In terms of weight and size, the iHeat Tankless S-14 has a lightweight design and is compact in size. This means you can easily install it on a wall. Speaking of installation, the iHeat Tankless S-14 needs copper pipings, and this could be inconvenient for many people.

After unpacking this unit, you will notice the temperature control setting is pegged at 32 degrees. This is the default rate. However, the setting is adjustable and can be scaled up to up to 150 degrees. This makes this electric water heater from iHeat Tankless the best in terms of flexibility.

Its energy-efficient nature and waterproof touchpad make it worth the money since you will pay less on electricity bills, and you will not have to encounter rust and corrosion on your unit.


  • It is highly durable thanks to its high-quality build
  • It is energy-efficient, and thus great for cottages and cabins
  • Its compact size makes installation easier as you can even put it under counters or closets
  • Waterproof construction makes it safer for one to interact with its touchpad


  • Has low GPM, which can be an issue for some people

9.Eemax EEM24013 Electric Tankless Water Heater

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Eemax is a renowned brand, especially when it comes to making tankless water heaters, and one of the effective tankless electric water heaters is Eemax EEM24013.

In terms of temperature controls, this water heater features a digital temperature control panel where you can make adjustments to the water temperature you need for your home.

To overcome the problem that many units pose of using excessive energy, this model has self-adjusting technology, whereby it only heats water when you want to use hot water.

What’s more, this water heater is lightweight and compact, and thus can be installed even in tight areas. However, it is slightly pricey as compared to other water heaters in its category, but its efficiency in terms of energy usage as well as consistency in supplying hot water makes it worth the price.

We can recommend this water heater from Eemax since Eemax is a popular brand, and their knowledge in making water heaters is unparalleled. They have a great variety of other quality products, and we believe that this is another of their great model.

Therefore, if you are looking for a reliable and durable tankless water heater for your home or commercial premises, then Eemax EEM24013 will not disappoint.


  • This tank provides a continuous flow of hot water
  • It is energy efficient thanks to its self-regulating technology
  • Comes in a compact size thus can be installed virtually anywhere
  • Ensures the consistent, instant, and continuous flow of hot water


  • It is a bit costly

10.Rheem 240V 2Tankless Water Heater

best tankless electric water heater for large family

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Featuring a brass and copper frame, this rugged tankless water heater from Rheem can withstand even the harshest of water conditions. In other words, it is built for durability.

With a simple, lightweight design, you can install this water heater at any corner or nook. What’s more, it is energy efficient since it heats water only when needed, and thus has very low energy consumption.

Among the most noticeable features of this unit is the external thermostatic control displayed on its LED screen. The digital control buttons are easy to operate and are responsive. This means you can easily adjust water temperature from 80F degrees to 140F degrees.

You can use this tankless water heater for different tasks thanks to its different output rates, which range from 0.5GPM to 4.4 GPM. This means you can use it to heat water for a hand sink, dishwasher, bathtub, or showerhead.

Installing it is quite straightforward, and you are likely not to experience any hitches with its installation.

Overall, we can term the RTEX-18 tankless heater as an energy-efficient model that produces hot water at a consistent flow rate. The product is backed by a 5-year warranty, which shows that the manufacturer has confidence in their product.


  • It is energy efficient as it only heats water on demand. This helps to reduce your electricity bills
  • It has a maximum GPM of 4.4, which makes it ideal for different purposes
  • Has adjustable temperature setting
  • It has a stylish, compact design, that can fit virtually anywhere
  • The unit is reliable when it comes to heating water


  • If you have never installed a tankless water heater before, you may need to call an expert
  • Can flicker, although this is not frequent

What To Look For In An Best Tankless Electric Water Heater for a Large Family?

There are a few things that you must consider when you are thinking about buying the best tankless electric water heater for a large family. These are the basic things you must look for from it;


Electric water heaters are way more affordable than gas heaters. But you have to be sure if your house is well equipped to make it work.

Easy InstallatWater:

You should look for a tankless electric water heater with a very simplistic design. You can easily install such a heater in your home.

Energy Efficient:

Energy efficiency is a very important aspect to look for.

Enough Flow of Water:

Be sure if the heater allows flowing the amount of water that you might need.

Safety Feature:

You have to look for if all the safety features of a heater available in it.

Benefits and Downsides of Electric Tankless Water Heater


Traditional water heaters last for about 9-14 years, but tankless water heaters can last for up to 20 years. There are parts you can replace to extend its lifespan.

Energy efficiency:

Most of the tankless water heaters are energy efficient as most only heat water when you are using them. Although they have higher installation costs, the overall cost of operating them makes them cheaper in the long run. This means you will save a lot of money on electrical bills, as compared to someone who is using a traditional water heater.

Compact and small in size:

Tankless water heaters come in small, compact designs, unlike traditional water heaters that occupy a lot of your precious space that can be utilized for other things. Generally, traditional heaters are bulkier as they normally hold 35-60 gallons of water. However, tankless designs, don’t need to hold water; that’s why they are small in size.


These units are faster when it comes to heating water than standard heaters. They heat water that passes through them, which means that you will not lack hot water in your home.


Initial cost: While these units help users to save on operating costs, they are pricey and costly to acquire than standard heaters. However, this cost is saved by their energy-efficient nature.

Lag time: While these units supply water continuously for a long time, there is a slight delay before the hot water starts running. This lag doesn’t indicate that your unit is incompetent- it takes some time to clear out the cold water in the pipes.

Common Problems You Can Encounter With an Electric Water Heater

Knowing the reason behind some of the common problems you may face with your electric water heater can help you solve them easily;

Mineral layer build-up:

In most cases, a water heater can experience leakages or blockages caused by the build-up of minerals such as calcium and magnesium. To avoid these problems, you should clean your water heater at least once a year.

Fluctuations in water temperature:

This is a common problem many water heater users experience. To avoid this problem, go for a water heater that can accommodate your hot water needs.

Overburdening your water heater:

Water heaters have their maximum hot water flow rate. Some can service a home with multiple showers and appliances, while others are made for just one faucet. Therefore, it is important to consider this when buying a water heater. Get one that can handle your hot water demands so as to not to experience hitches.

Which Are Electric Tankless Water Heaters On The Market?

There are various sorts of water heaters available in the market. The electric tankless water heater is just another type of it. But it is technologically very smart.

However before going to buy any electric tankless water heater try to have a little bit of research about all the pros, cons, and features of that product and decide what serves your purpose best. After having the decision go to the market to have your favorite product. Our top 10 electric tankless water heaters can also help you out in finding out the perfect one for you.

Different Types of Electric Tankless Water Heaters:

There are different varieties of the best electric tankless water heaters available in the market. Let’s have a brief idea about it;

Outdoor Electric Tankless Water Heaters:

This type of electric tankless water heater can be installed outside the wall of a bathroom. It often comes with freeze protection systems. It is ideal for a home not having enough space.

Portable Electric Tankless Water Heaters:

It is very light and it is very easy to install almost anywhere. It has a very significantly smaller flow rate compared to other types of electric tankless water heaters. It is ideal for traveling, camping, and RV.

Single-Use Electric Tankless Water Heaters:

It is suitable for a single-point application or just for a single room. It is already implied in the name of it. This is a small heater that is a perfect setup for a single faucet at a time to provide hot water.

Whole-House Electric Tankless Water Heaters:

If you are living in a large house with all the members of your family then to do all the regular tasks you will need hot water in multiple taps on a regular basis.

So you will need a whole house electric tankless water heater review for it. It will be able to meet the demand for hot water for the entire house.

Important Features Of Electric Tankless Water Heaters:

Now let’s dive into knowing some of the important features of electric tankless water heaters. These are the things that make it stand out from other water heaters;

Fast Heating Duration:

Here you have to wait at least one minute to get your hot water. But there are some systems available that will let you have hot water almost instantly.

Flexible Installation Spot:

This should be easy to install. Like it can be installed anywhere you want. As long as you have the arrangement of plugging it in.

Maximum Energy Efficiency:

These electric tankless water heaters use 98% or sometimes 99% of the electricity that it consumes to heat the water. There is hardly any wastage of power.

Disease Protection:

Since this water heater is tankless. It doesn’t accumulate water that can be a perfect place for the growth of bacteria. So it is a healthy way of heating water without having any bacteria attack.

Less Powerful:

Naturally, it is less powerful than gas-operated heaters. This is a con of this water heater but considering all the brighter sides it is nothing.

On-demand Heating:

With this tankless system, you will be able to enjoy hot water whenever you open your faucet.

How To Use Electric Tankless Water Heater?

Electric tankless water heaters are quite are a very advanced technology that is used to lessen the consumption of power and energy tremendously. It is built in this way to meet this power-saving demand.

It saves energy almost 60% more than gas-based heaters. It consumes almost 98% of the electricity it needs for the operation. This is very efficient.

You just have to signal the needed faucet to flow hot water and you will get the water that you needed. There are different types of tankless water heaters. Some of them serve one sink only and some can serve multiple toilets and sinks. You can pick whichever suits your house the best.

When Not To Use An Electric Tankless Water Heater?

There are times when you must think about whether you should use the best electric tankless water heater or not. So let’s have some idea in which cases you should not think about using an electric tankless water heater;

Inconsistent Temperature:

This is one of the most common complaints from the buyers about the electric tankless water heater. It happens probably because of the incapability of sending hot water to different faucets simultaneously.

Higher Initial Cost:

We all know by now that electric tankless water heaters save energy and are efficient regarding power consumption. So it saves tons of money after installation. But while installation the cost is a bit higher that is difficult to afford to some.

Limited Water Supply:

Since electric tankless water heater doesn’t hold water in a tank. It provides hot water whenever it is demand instantly. It can not supply hot water all the time.

Additional Necessary Equipment:

For proper functionalities, some other equipment may be in need at various times.

Tricky Installation:

The installation is a bit tricky and not traditional so the expenses will be higher.

So these are some of the reasons which might bother you not to use an electric tankless heater.

How To Installation & Maintenance Electric Tankless Water Heater?

There are a few steps that you must follow for installation and maintenance.

For installations:

Most of the models can be installed indoors only but make sure it can avoid weather damage.

  • For indoor installation do it near the main power panel.
  • Make sure the distance from the heater and a tap is not too much.
  • More distance means more wire and tubes.
  • Make sure the heater will not be in touch with water.
  • Having moisture in the installation place must be avoided.
  • It should be an easy to access area.
  • Follow the instruction manual with it.

For maintenance:

A tankless water heater can accumulate minerals that might build up on the heating chamber’s wall. Eventually, it will erode them. There is no other way other than to maintain your tankless heater. You will have to maintain it by flushing and removing the mineral deposits that are within the unit at least once a year.

How long your heater might be able to serve you will depend largely on how you maintain it regularly.

Things To Consider Before Buying Best Electric Tankless Water Heaters:

There are a few things that you must consider when you are thinking about buying an electric tankless water heater. Like;

  • Energy-saving is a very important reason behind choosing a tankless water heater. When you choose an electric water heater you are not using other costly energy sources. That is the efficiency of this heater.
  • The more a water heater can save energy in the time of operation, the more efficient it is. Using fuel or other things wastes so much energy and money. In such a situation, an electric tankless water heater is the ultimate choice.
  • You have to see the manufacturer is giving the warranty of the product reasonably. The warranty you will be having for this heater will vary from product model to model and manufacturer to manufacturer.
  • You have to be sure about the one you are going to choose. A warranty shows the reliability and confidence a manufacturer has for its products.
  • There is a size for a water heater. It is being measured by determining the temperature rise needed for a certain flow of water. Make sure it is perfectly calculated.
  • Only then you will get perfect temperature water at perfect timing.
  • Buy it from a well-established brand.

Frequently Asked Questions(FAQs)

What Is An Electric Tankless Water Heater?

If you still don’t know what is an electric tankless heater, then this section will surely help you out. An electric tankless water heater is a water heater that runs on electricity and thus saves energy. There is no need of having any tank to hold the water to make it warm. So, in short, this can provide you with hot water whenever you need it.

The energy-saving formula that it brings with it will save you enough money. A tankless electric water heater keeps working when you tap on a hot water tap. The cold water this way keeps flowing into the heater’s unit. But in this case, the electric unit will heat the water.

what do you think about the most significant benefit of an electric tankless water heater?

Answer: The biggest benefit of an electric water heater is its efficiency. Here electric heater uses almost 100% of the energy that it consumes from electricity. On top of that, it saves power significantly compared to the heaters that use other fuels.

Will the normal faucet be perfectly compatible with electric tankless water heaters or should I have to buy some other type?

Answer: yes normal faucets are perfect for electric tankless water heaters. You don’t have to be bothered about buying another faucet for it.

How hard it is to change your electric tankless water heater?

Answer: It is not very hard if you have some basic plumbing and electrical skills. If there is an earlier heater and that is electric with the same storage capacity the task even gets quite easier. However, altering from a different type of water heater can be troublesome.

Does an electric water heater make any noise?

Answer: Yes some of the electric water heaters make a very faint noise. But you will hardly hear it without proper attention.

Final Word:

Having a tankless electric water heater for large families is not a luxury. Rather this is an absolute necessity for your family and yourself during winter. So before installing a water heater, you will have to know all the nitty-gritty about it. When you are convinced to have an electric tankless water heater for yourself try to find out the suitable one for you.

From our top picks, you can get some idea about the electric water heaters as well. After having an in-depth idea of all the models you can finally pick one that will serve your purpose best.

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